April sync (#360)

* Maps and things no code/icons

* helpers defines globalvars

* Onclick world.dm orphaned_procs

* subsystems

Round vote and shuttle autocall done here too

* datums

* Game folder

* Admin - chatter modules

* clothing - mining

* modular computers - zambies

* client

* mob level 1

* mob stage 2 + simple_animal

* silicons n brains

* mob stage 3 + Alien/Monkey

* human mobs

* icons updated

* some sounds

* emitter y u no commit

* update tgstation.dme

* compile fixes

* travis fixes

Also removes Fast digest mode, because reasons.

* tweaks for travis Mentors are broke again

Also fixes Sizeray guns

* oxygen loss fix for vore code.

* removes unused code

* some code updates

* bulk fixes

* further fixes

* outside things

* whoops.

* Maint bar ported

* GLOBs.

code/modules/power/powernet.dm

@@ -15,7 +15,7 @@
 	var/netexcess = 0			// excess power on the powernet (typically avail-load)///////
 
 /datum/powernet/New()
-	SSmachine.powernets += src
+	SSmachines.powernets += src
 
 /datum/powernet/Destroy()
 	//Go away references, you suck!
@@ -26,7 +26,7 @@
 		nodes -= M
 		M.powernet = null
 
-	SSmachine.powernets -= src
+	SSmachines.powernets -= src
 	return ..()
 
 /datum/powernet/proc/is_empty()